Otoacoustic emissions in a song bird

G. A. Manley; M. Schulze; H. Oeckinghaus

doi:10.1016/0378-5955(87)90062-1

Otoacoustic emissions in a song bird

G. A. Manley, M. Schulze, H. Oeckinghaus

Life Sciences

Technical University of Munich

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

Synchronously evoked Otoacoustic emissions (SEOAEs) were found in about two thirds (61%) of 56 ears of the starling Sturnus vulgaris. They appeared with rather broad synchronization widths (about 200 Hz) and predominantly at frequencies in the upper half of the hearing range of this bird. SEOAEs varied in level from below - 30 dB to 2 dB SPL and showed typically nonlinear intensity functions. The emissions were present even following extirpation of the middle-ear muscle and could be suppressed by anaesthetics. Using Halothane, it was possible to determine the time course of this suppressive effect. Using second tones, typical iso-suppression tuning curves were obtained. The similarities and differences between the characteristics of these SEOAEs and emissions in other nonmammals and in mammals are discussed with regard to anatomical differences in inner-ear structure.

Original language	English
Pages (from-to)	257-266
Number of pages	10
Journal	Hearing Research
Volume	26
Issue number	3
DOIs	https://doi.org/10.1016/0378-5955(87)90062-1
State	Published - 1987

Keywords

Bird
Otoacoustic emission
Songbird
Suppression

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10.1016/0378-5955(87)90062-1

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@article{7fffb4cac1604fc4bf3ed40a6f83c9b4,

title = "Otoacoustic emissions in a song bird",

abstract = "Synchronously evoked Otoacoustic emissions (SEOAEs) were found in about two thirds (61\%) of 56 ears of the starling Sturnus vulgaris. They appeared with rather broad synchronization widths (about 200 Hz) and predominantly at frequencies in the upper half of the hearing range of this bird. SEOAEs varied in level from below - 30 dB to 2 dB SPL and showed typically nonlinear intensity functions. The emissions were present even following extirpation of the middle-ear muscle and could be suppressed by anaesthetics. Using Halothane, it was possible to determine the time course of this suppressive effect. Using second tones, typical iso-suppression tuning curves were obtained. The similarities and differences between the characteristics of these SEOAEs and emissions in other nonmammals and in mammals are discussed with regard to anatomical differences in inner-ear structure.",

keywords = "Bird, Otoacoustic emission, Songbird, Suppression",

author = "Manley, \{G. A.\} and M. Schulze and H. Oeckinghaus",

note = "Funding Information: Supported by the Deutsche Forschungsgemein-schaft within the programme of the Sonder-forschungsbereich 204, {\textquoteleft}Gehor{\textquoteright}. We thank Prof. Eberhard Zwicker and Dr. Christoph Dallmayr for the loan of equipment and helpful discussions. We also thank Profs. Zwicker and Konishi for commenting on an earlier version of the manuscript.",

year = "1987",

doi = "10.1016/0378-5955(87)90062-1",

language = "English",

volume = "26",

pages = "257--266",

journal = "Hearing Research",

issn = "0378-5955",

publisher = "Elsevier B.V.",

number = "3",

}

TY - JOUR

T1 - Otoacoustic emissions in a song bird

AU - Manley, G. A.

AU - Schulze, M.

AU - Oeckinghaus, H.

N1 - Funding Information: Supported by the Deutsche Forschungsgemein-schaft within the programme of the Sonder-forschungsbereich 204, ‘Gehor’. We thank Prof. Eberhard Zwicker and Dr. Christoph Dallmayr for the loan of equipment and helpful discussions. We also thank Profs. Zwicker and Konishi for commenting on an earlier version of the manuscript.

PY - 1987

Y1 - 1987

N2 - Synchronously evoked Otoacoustic emissions (SEOAEs) were found in about two thirds (61%) of 56 ears of the starling Sturnus vulgaris. They appeared with rather broad synchronization widths (about 200 Hz) and predominantly at frequencies in the upper half of the hearing range of this bird. SEOAEs varied in level from below - 30 dB to 2 dB SPL and showed typically nonlinear intensity functions. The emissions were present even following extirpation of the middle-ear muscle and could be suppressed by anaesthetics. Using Halothane, it was possible to determine the time course of this suppressive effect. Using second tones, typical iso-suppression tuning curves were obtained. The similarities and differences between the characteristics of these SEOAEs and emissions in other nonmammals and in mammals are discussed with regard to anatomical differences in inner-ear structure.

AB - Synchronously evoked Otoacoustic emissions (SEOAEs) were found in about two thirds (61%) of 56 ears of the starling Sturnus vulgaris. They appeared with rather broad synchronization widths (about 200 Hz) and predominantly at frequencies in the upper half of the hearing range of this bird. SEOAEs varied in level from below - 30 dB to 2 dB SPL and showed typically nonlinear intensity functions. The emissions were present even following extirpation of the middle-ear muscle and could be suppressed by anaesthetics. Using Halothane, it was possible to determine the time course of this suppressive effect. Using second tones, typical iso-suppression tuning curves were obtained. The similarities and differences between the characteristics of these SEOAEs and emissions in other nonmammals and in mammals are discussed with regard to anatomical differences in inner-ear structure.

KW - Bird

KW - Otoacoustic emission

KW - Songbird

KW - Suppression

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U2 - 10.1016/0378-5955(87)90062-1

DO - 10.1016/0378-5955(87)90062-1

M3 - Article

C2 - 3583927

AN - SCOPUS:0023140993

SN - 0378-5955

VL - 26

SP - 257

EP - 266

JO - Hearing Research

JF - Hearing Research

IS - 3

ER -

Otoacoustic emissions in a song bird

Abstract

Keywords

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